LOL the cracked version removes this glitch. The irony that paid game is worse than free pirated.
This has commonly been the case with DRM'd games.
I ended up having to pirate it in addition to buying it in order to play it the first few weeks. They eventually released a patch, but by then I had been playing the game for weeks without another problem and there was no way I was risking their countermeasures.
At the time, I was pissed that I spent my good money and they screwed me like that, and even denied the problem for weeks before fixing it.